低压台区线损管理是供电企业降损管理的重要组成部分，而影响台区线损的主要因素有设备和管理两方面。从以上两方面深入分析了影响台区线损的具体原因，并提出了相应的降损措施。

The low pressure area station line loss management is an important part of reducing power loss management companies, and the main factors affecting the District Line Loss have equipment and management aspects. In this paper, from the above two aspects analyzes the influence area line loss of the specific reasons, and proposed the corresponding loss reduction measures.

随着智能配电网的发展,低压配电网配置计量装置将越来越完善,为理论线损的准确计算奠定了基础,从而为制定节能降损措施提供了技术条件。首先,指出了目前常用的低压台区理论线损计算方法存在的问题;其次,在计量装置配置完善化前提下,提出了一种计及负荷波动、三相不平衡、低压无功补偿、单相/三相混合供电等情况的低压台区理论线损计算方法;最后,将所提方法应用于实际低压台区理论线损计算,能更为准确地反映三相负荷不平衡、负荷波动、低压无功补偿等因素对低压台区线损的影响,能更为有效地制定低压配电网节能降损措施。

With the development of smart distribution grid, meter devices configured for low-voltage power distribution are improving over time, which lays foundation for accurate theoretical line loss calculation and provides technical condi-tions for energy conservation and loss reduction. First, various problems in theoretic line loss calculation methods for low-voltage distribution areas are analyzed. Second, assuming that low-voltage distribution areas are equipped with e-nough meter devices, the paper put forward a theoretical line loss calculation method for low-voltage transformer areas, which considers affecting factors such as load fluctuations, three-phase load unbalance, low-voltage reactive power com-pensation and single-phase/three-phase/three-phase four-wire hybrid power supply. Finally, the proposed method is ap-plied to calculate theoretic line loss in real cases, and the calculation results can reflect more accurately the influence of load fluctuations, three-phase load unbalanc

用电信息采集系统全覆盖工作推行不久，多个安装三合一集中器的台区出现负线损情况。三合一集中器作为台区线损考核表计会给台区线损计算带哪些影响。针对此问题，笔者通过对三合一集中器工作原理分析、自检时间以及自检时计量性能的测试，发现集中器自检时不计量的功能缺陷。以此给出集中器重启时间计算，现场死机频率评估的方法。并建议集中器生产厂家把电能计量回路在设计上独立出来，不出现少计电能现象以及在集中器电能少计量问题未解决之前，暂不以集中器所计电能值作为考核核算线损的总电能值。

Electric energy data acquire system covering the whole job to carry out soon,a plurality of installation three in a concentrator area negative line loss. Three in one concentrator as the area loss appraisal meter will give area losscalculation with what effect. Aiming at this problem, based on the analysis of the working principle of three in a concentrator, self checking time andmeasuring performance of self, functional defects not found self meteringconcentrator. This gives the concentrator restart time calculation, the crashfrequency estimation method. And suggested that the concentratormanufacturers to electric energy metering circuit of independence in the design, does not appear less electricity phenomenon in concentrator and less energy measurement issues not addressed before, not to the electric energyconcentrator as the total electric energy accounting loss assessment.

简单介绍了变压器绕组介损测试原理,针对3台新安装的110 kV变压器绕组介损的现场实测数据比出厂数据偏大130%的情况进行了对比分析,并结合现场试验的经验,分析了可能引起介损值略偏大的原因,提出了具体判定建议,变压器投运后的运行情况表明判断合理有效。

The paper briefly introduces dielectric test philosophy of transformer winding. Aiming at the field measured dielectric loss of windings of three newly-installed 110 kV transformers is 130 percent larger than the default data, the paper analyzes the causes for overlarge dielectric loss by comparative analysis and combing the experience in field test. In addition, the paper puts forward specific suggestions for judgment. The operating condition of the transformer shows that the judgment is reasonable and effective.

用户电能表异常,尤其是负误差超差,会导致台区线损偏高。为了准确定位异常电能表用户,选择皮尔逊相关系数算法进行计算,该算法具有速度快、定位准、效率高的优点。从线损电量与用户电量关系出发,阐述了皮尔逊相关系数算法的原理,介绍了泰州供电公司运用皮尔逊相关系数算法查找异常电能表用户的实例,提出采用该算法在查找异常电能表中的注意事项。

A user??s watt-hour meter may have some abnor-malities, one of them is the overproof of negative errors. This will lead to district line loss higer. In order to position the users with ab-normal watt-hour meters accurately, the article chooses to use pear-son correlation coefficient algorithm. This kind of algorithm is quick, accurate and efficient.The article starts with the relationship between line loss and electric energy, then expatiates the theory of the algorithm, and gives some examples of how Taizhou Power Sup-ply Company uses the algorithm to search for the users with abnor-mal watt-hour meters and some matters in using the algorithm.